Oil-cooling device for internal-combustion engines



May 2o, 1924. 1,494,437

` K. R. MANvlLLE OIL COOLING DEVICE FOR INTERNAL COMBUSTION NGINES`Filed May l0 1923 I 2 nvewcoz v 331g his -f-.Pate'nte May 2, i924.

KEITH R. MNVILLE, OF BROOKLYN. YORK, ASSIGNOR TO INTERNATIONAL MOTORCOMPANY, F NEW YORK, N. Y, A CORPORATION 0F DELAWARE.

OIIPCOOLING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Application led May 1G, 1923. Serial No. 637,943.

To all whom it may concern;

Be it known that I, KEITHy R. MANVILLE, a citizen of the UnitedStates,residing in the borough of Brooklyn, of the city of New o York, in theState of New York, have invented certain new and useful Improvements inOil-Cooling Devices for internal-Combustion Engines, of which thefollowing is a specification, reference being had to the accompanyingdrawings, forming a part hereof.

In internal combustion engine practice it is desirable to keep the oilat as nearl the temperature of the cylinder wall as possible, both insummer and in winter, this condition being especially desirable insummer when ,the oil has a tendency to reach "a tempera,- ture abovethat at which it is most effective in lubricating. It has been pro osedhere- 30 tofore to accomplish this `resu t to some degree by aninterchange f'heat between the oil and cooling waterb'ut no -simpledevice, well adapted in automotive practice to satisfy manufacturingrequirements and the Arequirements of use, has everbeen devised. Inaccordancewith the present invention it is proposed to secure anefficient and effective interchange of heat between the lubricating oiland the cooling water` of an internal combustion engine by a simple,in`expensive and unitary-device which maybe introduced in the circulatorysystem of both the water and oil without disturbin 'the conventional'construction off any of? parts of the engine. Byzmeans of` this devicethe oil is maintained at aboutthe same temperature as that of thecooling water so that the temperature of the lubricating oil when thrownonto the cylinder walls is 430 not so dierent from that-of the cylinder.walls whoseternperature is influenced by the water in the jackets: 1

i ln accordance with' he invention the water from the radiator is ledthrough at casing in which is disposed a coil through which the oilpasses in its circulatory system. v The casing is preferably formed asan integral aluminum casting with .the ends of the coil of copper pipeor the like cast di- 5@ rectly in its walls thereby eliminatingimpractical joints and structural difficulties incidental thereto.

The invention will be described in connection with the accompanyingdrawings the v which illustrate the preferred embodiment thereof. In thedrawings:

Figure l is a view`in longitudinal central section through an aluminumcasing having a coil for the oil disposed centrally thereof.

Figure 2 is a similar view` taken at right angles to the section ofFigure land indieating suitable. connections for the oil pipe.

The circulatory pipe n for the cooling water which may be considered asextending from the radiator tothe jacket of the motor is broken to admitthe introduction of a tubular casing b of enlarged diameter which may beformed at its opposite ends withthreads b for convenient connection withthe piping a, the free `:dow of water being wholly unimpeded by theintroduction of the casing b. Within the casing is ydisposed a coil ofpipe c, preferably copper or other efficient heat radiating metal, thecoils thereof being preferably arranged co-axially with respect to thepiping a and to the casing o as indicated bv the arrows in Figure 2.

However, the coi s c are mounted in spaced Y relationship to the wall ofthe casing b and are preferably spaced from one another so that\thewater may'ilow freely around the coils and come into contact with theentire exposed superficial surface thereof. ln accordance with theinvention it is proposed,

in the preferred embodiment, to case the ends 621.62, of the coil@directly in the wall of the' casing othereby forming a simple,inexpensive, water-tight connection and eliminating a substantial itemof expense in manufacture and lessening the danger of .leakage as mightbe expected were conven- .tional joints employed. The inlet end c' ofthe coil and the outlet end c2 are preferablyvush with the externalsurface of the,

casing c to facilitate the attachment of the man1 o A ing, respectively,'with lthe ends c', c2, for the inflow and outflow 'ofllubricatin oil,the passages d', ai?, being'connected in t e regu- .lar circulatorysystem.` .It is evident, however, that the ends c', c2, of the coilmight ld d having channels. d (i2, registerextend outside of the casingo and be thread- I ed for connection of other pipes, as through unionnuts. The casing b in the interest of lightness and cheapness inmanufacture is referably cast of aluminum, the coil c beingiplaced in.the mold. with its ende c', 0*,

in proper osition before the aluminum is poured. Tie ends c', c2, Willconstitute an adequate support for the coil c a'nd maintain it indesiredrelation to the flowing Water and to the walls of the casing.

l From the description given it will be evident that provision has-beenmade for effecting the desired interchange of heat between the Water andoil in the conventional circulatory systems of an internal combustionengine with the minimum expense, greatest accessibility und mostefficient and durable devices.

Changes in details of construction may be made without departing fromthe spirit of the invention.

What I claimis:

l. )in oil cooling device for internal combustioin` engines comprising alongitudinal pipe section connected in the piping of the Watercirculatory system and disposed coaxially therewith and a coil of pipemounted 2.` Oil cooling means? Within the said section co-axiallytherewith and having its ends connected through the side Walls of thesaid section in the circulatory oil system.

devices comprising a cast metal pipe section connected longitudinally inthe circulatory piping of the Water system and coaxially therewith and acoil of pipe disposedtherein and having its ends cast in theside wallsthereof and connected in the oil" circulatory system.

v 3. As an article of manufacture a casing of cast aluminum adapted forconnection in the Water circulatory system of an internal combustionengine and having disposed therein a coil of copper pipe the ends ofwhich are ca'stin the -Walls of the casing and connected in the oilAcirculatory system.

rlhis specification signed this 8th day of May, A.. D. 1923.

KEITH R. MANVILLE.

